DEVELOPERS 103 
Flexible coliodion should be applied to all cracks during the 
day. 
Metol-hydrochinon (Cramer) — 
Ee Nletol,) . 2g 30 gr. 
Hydrochinon 6g 90 gr. 
Sodium sulphite, dry 30 g 1 oz. 
Water 750 ccm 25/02: 
B. Sodium carbonate, dry Lig, YY oz. 
Water 750 ccm 25 Oz: 
For use mix in equal volumes. 
Ansco Metol-Hydrochinon.— 
Metol 1.56 ¢ 48 gr. 
Hydrochinon 0.78 g 24 er. 
Sodum sulphite, dry Og 280 ger. 
Sodium carbonate, dry 6g 180 gr. 
Potassium bromide 0.39 g i2er, 
Water 1000 ccm 64 oz. 
Pine. 5 or 6 minutes at 18° C.. (657 F.). 
M. Q. Eastman Motion Picture Film, Negative & Post- 
tive.— 
Elon (metol) I2¢ 180 gr. 
Sodium sulphite, dry 1590 g SlbV Sez: 
Hydrochinon 240 ¢ 8 oz. 
Potassium bromide 36.2, Waz'63 ex. 
Sodium carbonate, dry 750 g 1 lb., 9 oz. 
Citric acid 28 g 400 gr. 
Potassium metabisulphite 60 g Zioz 
Water 40 liters 1280 oz. 
Michiperatine 657) Hi (1s* C.). 
Eastman Portrait & Commercial Films.—Metol-hydro- 
chinon tank formula.— 
Elon (metol) 1 O:8)e 170 gr. 
Sodium sulphite, dry 23:9) 2 12 oz. 
